The Civil War in a film based on a 1852 novel?

.............Like anyone who studied history in high school I'm aware "Uncle Tom"s Cabin" had a major effect on the antislavery movement which, along with states rights and a bitter debate about what kind country the United States, led to the Civil War. Abraham Lincoln even referred Harriet Beecher Stowe as "the little lady who started the big war". The problem is the novel was published in 1852, nine years before Lincoln was inaugurated, the Confederate States seceded from Union and fired on Fort Sumter, even though those events are depicted in the film version. Also, at the end, Union troops ride to the rescue of Eliza and her family...............Also in the novel Eliza and her son escape to the free state of Ohio, where they reunite with her husband, escape to Canada, France and ultimately to Liberia; then a African state established for freed slaves. In the movie she and her son are recaptured by slave catchers. This was a real enough problem following the Dread Scott dissuasion and was depicted movingly and tragically in Tonnie Morrison's "Beloved", but it wasn't the plot line in "Uncle Tom's Cabin"..............In short it seems strange the film makers didn't stick to the original story. If they wanted to do a movie about slaves during the Civil War they should have come up with an original script and title.

True genius is a beautiful thing, but ignorance is ugly to the bone.